Titanium Engine Kit V-Strom DL650A 11+ Race Spec All the bolts to replace manufacturers originals on side engine casings including clutch covers, water pump housing, alternator cover and sprocket covers where applicable. Kits are easy to use - remove one bolt at a time, and replace with an identical length Pro-Bolt! Our Race-Spec bolts have a reduced socket size with holes drilled on each of the flats for lock-wiring, wasted shank, scooped out head, and rolled threads. Therefore not only can you achieve a 45% weight saving on your original steel bolts (the average weight of one of these is just 3.82 grams!) but they are also strong and corrosion resistant. Straight from the machine for that factory finished look, as used by World Superbike Teams! Primarily M6 diameter threads with an M8 Socket size. Our bolts are made from 6AL-4V (Grade 5) which can be torque to manufacturers original settings. This unique design was brought to the market by Pro-Bolt. Engineered for the ultimate in weight saving, for racers, enthusiasts and those who crave real attention to detail. Also included in the kit are Pro-Lube and Pro-Bolt sticker..